Patents by Inventor Michel Alex Omer Ledent

Michel Alex Omer Ledent has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Water-treatment composition and method of use
    Patent number: 6177047
    Abstract: The invention herein relates to water-treatment technology, namely compositions comprising a phosphonic acid, a zinc salt and a metal salt. A preferred metal salt is aluminum tri-chloride whereas amino tris methylene phosphonic acid is a preferred phosphonic species. The use of the compositions in water-treatment methods is also described.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: January 23, 2001
    Inventors: Krzysztof Kuczynski, Michel Alex Omer Ledent